The Premium 2-piece cranks use the same seamless heat-treated 4130 Cr-Mo arms as the 1948 cranks, but feature a 22mm 48-spline spindle. The 2-pc design simplifies the crank by permanently fixing the right arm to the spindle. Eliminating the need for a bolt on the right side of the crank set. The large 22mm spindle increases stiffness while reducing weight.
- Seamless 4130 heat-treated Cr-Mo tubing, with wrap around pedal gusset.
- Heat-treated hollow Cr-Mo 22mm, 48-spline spindle.
- Right and left side drive compatible.
- 9/16" pedal boss.